268 lines
12 KiB
Plaintext
268 lines
12 KiB
Plaintext
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -run-pass=thumb2-reduce-size %s -o - | FileCheck %s
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--- |
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv8m.main"
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%list_head = type { %list_head*, %list_data* }
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%list_data = type { i16, i16 }
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define %list_head* @reg_reg_it_block(%list_head* %a, i16 zeroext %b) {
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entry:
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br label %while.begin
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while.begin: ; preds = %while.body.end, %entry
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%list.addr.i = phi %list_head* [ %ld.5, %while.body.end ], [ %a, %entry ]
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%info.i = getelementptr inbounds %list_head, %list_head* %list.addr.i, i32 0, i32 1
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%ld.0 = load %list_data*, %list_data** %info.i, align 4
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%data16.i1 = bitcast %list_data* %ld.0 to i16*
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%ld.1 = load i16, i16* %data16.i1, align 2
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%xor.1 = xor i16 %ld.1, %b
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%cmp.i = icmp eq i16 %xor.1, 0
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br i1 %cmp.i, label %exit, label %while.body.a
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while.body.a: ; preds = %while.begin
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%next.i2 = bitcast %list_head* %list.addr.i to %list_head**
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%ld.2 = load %list_head*, %list_head** %next.i2, align 4
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%cmp.i.1 = icmp eq %list_head* %ld.2, null
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br i1 %cmp.i.1, label %exit, label %it.block
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it.block: ; preds = %while.body.a
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%info.i.1 = getelementptr inbounds %list_head, %list_head* %ld.2, i32 0, i32 1
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%ld.3 = load %list_data*, %list_data** %info.i.1, align 4
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%data16.i.13 = bitcast %list_data* %ld.3 to i16*
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%ld.4 = load i16, i16* %data16.i.13, align 2
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%xor.2 = xor i16 %ld.4, %b
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%cmp.i.2 = icmp eq i16 %xor.2, 0
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br i1 %cmp.i.2, label %exit, label %while.body.end
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while.body.end: ; preds = %it.block
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%next.i.14 = bitcast %list_head* %ld.2 to %list_head**
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%ld.5 = load %list_head*, %list_head** %next.i.14, align 4
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%cmp.i.3 = icmp eq %list_head* %ld.5, null
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br i1 %cmp.i.3, label %exit, label %while.begin
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exit: ; preds = %while.body.end, %it.block, %while.body.a, %while.begin
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%res = phi %list_head* [ %list.addr.i, %while.begin ], [ %ld.2, %while.body.a ], [ %ld.2, %it.block ], [ %ld.5, %while.body.end ]
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ret %list_head* %res
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}
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define i16 @op_not_killed(%list_head* %a, i16 zeroext %b) {
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entry:
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br label %while.begin
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while.begin: ; preds = %while.body.end, %entry
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%list.addr.i = phi %list_head* [ %ld.5, %while.body.end ], [ %a, %entry ]
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%info.i = getelementptr inbounds %list_head, %list_head* %list.addr.i, i32 0, i32 1
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%ld.0 = load %list_data*, %list_data** %info.i, align 4
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%data16.i1 = bitcast %list_data* %ld.0 to i16*
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%ld.1 = load i16, i16* %data16.i1, align 2
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%xor.1 = xor i16 %ld.1, %b
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%cmp.i = icmp eq i16 %xor.1, 0
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br i1 %cmp.i, label %exit, label %while.body.a
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while.body.a: ; preds = %while.begin
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%next.i2 = bitcast %list_head* %list.addr.i to %list_head**
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%ld.2 = load %list_head*, %list_head** %next.i2, align 4
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%cmp.i.1 = icmp eq %list_head* %ld.2, null
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br i1 %cmp.i.1, label %exit, label %it.block
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it.block: ; preds = %while.body.a
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%info.i.1 = getelementptr inbounds %list_head, %list_head* %ld.2, i32 0, i32 1
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%ld.3 = load %list_data*, %list_data** %info.i.1, align 4
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%data16.i.13 = bitcast %list_data* %ld.3 to i16*
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%ld.4 = load i16, i16* %data16.i.13, align 2
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%xor.2 = xor i16 %ld.4, %b
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%cmp.i.2 = icmp eq i16 %xor.2, 0
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br i1 %cmp.i.2, label %exit, label %while.body.end
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while.body.end: ; preds = %it.block
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%next.i.14 = bitcast %list_head* %ld.2 to %list_head**
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%ld.5 = load %list_head*, %list_head** %next.i.14, align 4
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%cmp.i.3 = icmp eq %list_head* %ld.5, null
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br i1 %cmp.i.3, label %exit, label %while.begin
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exit: ; preds = %while.body.end, %it.block, %while.body.a, %while.begin
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%res = phi i16 [ %ld.1, %while.begin ], [ %ld.1, %while.body.a ], [ %ld.4, %it.block ], [ %ld.4, %while.body.end ]
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ret i16 %res
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}
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...
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---
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name: reg_reg_it_block
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tracksRegLiveness: true
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liveins:
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- { reg: '$r0', virtual-reg: '' }
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- { reg: '$r1', virtual-reg: '' }
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body: |
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; CHECK-LABEL: name: reg_reg_it_block
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; CHECK: bb.0.entry:
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; CHECK: successors: %bb.2(0x80000000)
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; CHECK: liveins: $r0, $r1
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; CHECK: t2B %bb.2, 14 /* CC::al */, $noreg
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; CHECK: bb.1.while.body.end:
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; CHECK: successors: %bb.2(0x80000000)
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; CHECK: liveins: $r0, $r1
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; CHECK: renamable $r0 = tLDRi killed renamable $r0, 0, 14 /* CC::al */, $noreg :: (load 4 from %ir.next.i.14)
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; CHECK: tCMPi8 renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: BUNDLE implicit-def dead $itstate, implicit killed $cpsr, implicit $r0 {
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; CHECK: t2IT 0, 8, implicit-def $itstate
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; CHECK: tBX_RET 0 /* CC::eq */, killed $cpsr, implicit $r0, implicit internal killed $itstate
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; CHECK: }
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; CHECK: bb.2.while.begin:
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; CHECK: successors: %bb.4(0x04000000), %bb.3(0x7c000000)
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; CHECK: liveins: $r0, $r1
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; CHECK: renamable $r2 = tLDRi renamable $r0, 1, 14 /* CC::al */, $noreg :: (load 4 from %ir.info.i)
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; CHECK: renamable $r2 = tLDRHi killed renamable $r2, 0, 14 /* CC::al */, $noreg :: (load 2 from %ir.data16.i1)
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; CHECK: dead renamable $r2, $cpsr = tEOR killed renamable $r2, renamable $r1, 14 /* CC::al */, $noreg
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; CHECK: t2Bcc %bb.4, 0 /* CC::eq */, killed $cpsr
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; CHECK: bb.3.while.body.a:
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; CHECK: successors: %bb.4(0x4207fef8), %bb.1(0x3df80108)
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; CHECK: liveins: $r0, $r1
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; CHECK: renamable $r0 = tLDRi killed renamable $r0, 0, 14 /* CC::al */, $noreg :: (load 4 from %ir.next.i2)
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; CHECK: tCMPi8 renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: BUNDLE implicit-def dead $itstate, implicit-def dead $r2, implicit-def $cpsr, implicit $r0, implicit killed $cpsr, implicit $r1 {
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; CHECK: t2IT 1, 30, implicit-def $itstate
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; CHECK: renamable $r2 = tLDRi renamable $r0, 1, 1 /* CC::ne */, $cpsr, implicit internal $itstate :: (load 4 from %ir.info.i.1)
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; CHECK: renamable $r2 = tLDRHi internal killed renamable $r2, 0, 1 /* CC::ne */, $cpsr, implicit internal killed $r2, implicit internal $itstate :: (load 2 from %ir.data16.i.13)
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; CHECK: t2TEQrr internal killed renamable $r2, renamable $r1, 1 /* CC::ne */, killed $cpsr, implicit-def $cpsr, implicit internal killed $itstate
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; CHECK: }
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; CHECK: t2Bcc %bb.1, 1 /* CC::ne */, killed $cpsr
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; CHECK: bb.4.exit:
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; CHECK: liveins: $r0
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; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
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bb.0.entry:
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successors: %bb.1(0x80000000)
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liveins: $r0, $r1
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t2B %bb.1, 14, $noreg
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bb.3.while.body.end:
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successors: %bb.1(0x80000000)
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liveins: $r0, $r1
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renamable $r0 = tLDRi killed renamable $r0, 0, 14, $noreg :: (load 4 from %ir.next.i.14)
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tCMPi8 renamable $r0, 0, 14, $noreg, implicit-def $cpsr
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BUNDLE implicit-def dead $itstate, implicit killed $cpsr, implicit $r0 {
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t2IT 0, 8, implicit-def $itstate
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tBX_RET 0, killed $cpsr, implicit $r0, implicit internal killed $itstate
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}
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bb.1.while.begin:
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successors: %bb.4(0x04000000), %bb.2(0x7c000000)
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liveins: $r0, $r1
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renamable $r2 = tLDRi renamable $r0, 1, 14, $noreg :: (load 4 from %ir.info.i)
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renamable $r2 = tLDRHi killed renamable $r2, 0, 14, $noreg :: (load 2 from %ir.data16.i1)
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dead renamable $r2, $cpsr = tEOR killed renamable $r2, renamable $r1, 14, $noreg
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t2Bcc %bb.4, 0, killed $cpsr
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bb.2.while.body.a:
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successors: %bb.4(0x80000000), %bb.3(0x78200000)
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liveins: $r0, $r1
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renamable $r0 = tLDRi killed renamable $r0, 0, 14, $noreg :: (load 4 from %ir.next.i2)
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tCMPi8 renamable $r0, 0, 14, $noreg, implicit-def $cpsr
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BUNDLE implicit-def dead $itstate, implicit-def dead $r2, implicit-def $cpsr, implicit $r0, implicit killed $cpsr, implicit $r1 {
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t2IT 1, 30, implicit-def $itstate
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renamable $r2 = tLDRi renamable $r0, 1, 1, $cpsr, implicit internal $itstate :: (load 4 from %ir.info.i.1)
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renamable $r2 = tLDRHi internal killed renamable $r2, 0, 1, $cpsr, implicit internal killed $r2, implicit internal $itstate :: (load 2 from %ir.data16.i.13)
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t2TEQrr internal killed renamable $r2, renamable $r1, 1, killed $cpsr, implicit-def $cpsr, implicit internal killed $itstate
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}
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t2Bcc %bb.3, 1, killed $cpsr
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bb.4.exit:
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liveins: $r0
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tBX_RET 14, $noreg, implicit killed $r0
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...
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---
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name: op_not_killed
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tracksRegLiveness: true
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liveins:
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- { reg: '$r0', virtual-reg: '' }
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- { reg: '$r1', virtual-reg: '' }
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body: |
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; CHECK-LABEL: name: op_not_killed
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; CHECK: bb.0.entry:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $r0, $r1
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; CHECK: $r2 = tMOVr $r0, 14 /* CC::al */, $noreg
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; CHECK: bb.1.while.begin:
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; CHECK: successors: %bb.5(0x04000000), %bb.2(0x7c000000)
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; CHECK: liveins: $r1, $r2
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; CHECK: renamable $r0 = tLDRi renamable $r2, 1, 14 /* CC::al */, $noreg :: (load 4 from %ir.info.i)
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; CHECK: renamable $r0 = tLDRHi killed renamable $r0, 0, 14 /* CC::al */, $noreg :: (load 2 from %ir.data16.i1)
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; CHECK: t2TEQrr renamable $r0, renamable $r1, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2Bcc %bb.5, 0 /* CC::eq */, killed $cpsr
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; CHECK: bb.2.while.body.a:
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; CHECK: successors: %bb.5(0x04000000), %bb.3(0x7c000000)
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; CHECK: liveins: $r0, $r1, $r2
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; CHECK: renamable $r2 = tLDRi killed renamable $r2, 0, 14 /* CC::al */, $noreg :: (load 4 from %ir.next.i2)
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; CHECK: tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2Bcc %bb.5, 0 /* CC::eq */, killed $cpsr
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; CHECK: bb.3.it.block:
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; CHECK: successors: %bb.5(0x04000000), %bb.4(0x7c000000)
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; CHECK: liveins: $r1, $r2
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; CHECK: renamable $r0 = tLDRi renamable $r2, 1, 14 /* CC::al */, $noreg :: (load 4 from %ir.info.i.1)
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; CHECK: renamable $r0 = tLDRHi killed renamable $r0, 0, 14 /* CC::al */, $noreg :: (load 2 from %ir.data16.i.13)
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; CHECK: t2TEQrr renamable $r0, renamable $r1, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2Bcc %bb.5, 0 /* CC::eq */, killed $cpsr
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; CHECK: bb.4.while.body.end:
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; CHECK: successors: %bb.5(0x04000000), %bb.1(0x7c000000)
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; CHECK: liveins: $r0, $r1, $r2
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; CHECK: renamable $r2 = tLDRi killed renamable $r2, 0, 14 /* CC::al */, $noreg :: (load 4 from %ir.next.i.14)
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; CHECK: tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2Bcc %bb.1, 1 /* CC::ne */, killed $cpsr
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; CHECK: bb.5.exit:
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; CHECK: liveins: $r0
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; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit $r0
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bb.0.entry:
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successors: %bb.1(0x80000000)
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liveins: $r0, $r1
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$r2 = tMOVr $r0, 14, $noreg
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bb.1.while.begin:
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successors: %bb.5(0x04000000), %bb.2(0x7c000000)
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liveins: $r1, $r2
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renamable $r0 = t2LDRi12 renamable $r2, 4, 14, $noreg :: (load 4 from %ir.info.i)
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renamable $r0 = t2LDRHi12 killed renamable $r0, 0, 14, $noreg :: (load 2 from %ir.data16.i1)
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t2TEQrr renamable $r0, renamable $r1, 14, $noreg, implicit-def $cpsr
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t2Bcc %bb.5, 0, killed $cpsr
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bb.2.while.body.a:
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successors: %bb.5(0x04000000), %bb.3(0x7c000000)
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liveins: $r0, $r1, $r2
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renamable $r2 = t2LDRi12 killed renamable $r2, 0, 14, $noreg :: (load 4 from %ir.next.i2)
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t2CMPri renamable $r2, 0, 14, $noreg, implicit-def $cpsr
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t2Bcc %bb.5, 0, killed $cpsr
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bb.3.it.block:
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successors: %bb.5(0x04000000), %bb.4(0x7c000000)
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liveins: $r1, $r2
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renamable $r0 = t2LDRi12 renamable $r2, 4, 14, $noreg :: (load 4 from %ir.info.i.1)
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renamable $r0 = t2LDRHi12 killed renamable $r0, 0, 14, $noreg :: (load 2 from %ir.data16.i.13)
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t2TEQrr renamable $r0, renamable $r1, 14, $noreg, implicit-def $cpsr
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t2Bcc %bb.5, 0, killed $cpsr
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bb.4.while.body.end:
|
||
|
|
successors: %bb.5(0x04000000), %bb.1(0x7c000000)
|
||
|
|
liveins: $r0, $r1, $r2
|
||
|
|
|
||
|
|
renamable $r2 = t2LDRi12 killed renamable $r2, 0, 14, $noreg :: (load 4 from %ir.next.i.14)
|
||
|
|
t2CMPri renamable $r2, 0, 14, $noreg, implicit-def $cpsr
|
||
|
|
t2Bcc %bb.1, 1, killed $cpsr
|
||
|
|
|
||
|
|
bb.5.exit:
|
||
|
|
liveins: $r0
|
||
|
|
|
||
|
|
tBX_RET 14, $noreg, implicit $r0
|
||
|
|
|
||
|
|
...
|